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PIC18F46J50 Full-Speed USB Demonstration Board User’s Guide
2.6
OPERATION WITH THE PIC18 EXPLORER OR
PICDEM? HPC EXPLORER BOARDS
The basic hardware capabilities of the PIC18F46J50 Full-Speed USB Demonstration
Board can be supplemented by plugging it into the PIC18 Explorer Board or PICDEM
HPC Explorer Board. These boards have additional hardware features, such as:
?
?
?
?
A UART level translator
An RS-232 connector
Eight general purpose indicator LEDs
A potentiometer – Facilitates some of the USB demonstrations that read the
voltage output by the potentiator
? A full-size RJ-11-style programming/debugging jack
? A PICtail? daughter board connector – Enables easy probing of I/O pins or
connection to other expansion boards (such as the SD/MMC PICtail? daughter
board, www.microchipDIRECT.com )
Before connecting the PIC18F46J50 Full-Speed USB Demonstration Board to the
PICDEM HPC Explorer Board or the PIC18 Explorer Board, ensure that the board’s
PIC/ICE slider switch is in the “ICE” position. If the explorer board’s switch is in the
wrong position, pin P5 on the PIC18F46J50 Full-Speed USB Demonstration Board is
designed to physically interfere with the switch.
When the explorer board’s slider switch is in the ICE position, the MCLR pin of the
board’s PIC18F8722 microcontroller is held in Reset. This prevents I/O pin contention,
even though the PIC18F8722 and PIC18F46J50 microcontrollers electrically share I/O
pins when the two boards are connected.
DS51806A-page 13
? 2009 Microchip Technology Inc.
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